955640 has 32 divisors (see below), whose sum is σ = 2458080. Its totient is φ = 327552.

The previous prime is 955613. The next prime is 955649. The reversal of 955640 is 46559.

955640 = T₁₁ + T₁₂ + ... + T₁₇₈.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (955649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427 + ... + 1986.

It is an arithmetic number, because the mean of its divisors is an integer number (76815).

2⁹⁵⁵⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

955640 is an abundant number, since it is smaller than the sum of its proper divisors (1502440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

955640 is a wasteful number, since it uses less digits than its factorization.

955640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431 (or 3427 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 955640 is about 977.5684119283. The cubic root of 955640 is about 98.4989134703.

The spelling of 955640 in words is "nine hundred fifty-five thousand, six hundred forty".